QUALCOMM Incorporated
DELAYED HARQ-ACK DESIGN UNDER DYNAMIC SFI

Abstract:

Aspects of the present disclosure relate to wireless communications, and more particularly, to mechanisms for using block acknowledgments to acknowledge semi-persistently scheduled (SPS) occasions from multiple SPS configurations. An example method generally includes identifying a slot or subslot scheduled for reporting acknowledgment feedback for an SPS physical downlink shared channel (PDSCH). The method identifies that one or more symbols of the identified slot or subslot that are scheduled to transmit a physical uplink control channel (PUCCH) containing the acknowledgment feedback are semi-static flexible symbols. The method further monitors for a dynamic slot format indicator (SFI) dynamically configuring one or more of the semi-static flexible symbols of the slot or subslot as downlink, uplink, or flexible. The method then decides whether to report the acknowledgment feedback in the scheduled slot or subslot, in a subsequent slot or subslot, or both, based on the monitoring.